James T. Doyle

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—A CMOS subbandgap reference circuit with 1-V supply voltage is described. To obtain subbandgap reference voltages with a 1-V supply voltage, threshold voltage reduction and subthreshold operation techniques are used. Large 1 BE (100 mV) as well as a 90-dB operational amplifier are used to circumvent the amplifier offset. A power-on-reset (POR) circuit is(More)
A fully digital self-adjusting high efficiency power supply system has been developed based on an FSM control scheme. The system dynamically monitors circuit performance with a slacktime detector, and provides a substantially constant minimum-supply voltage for digital processors to properly operate at a given frequency with regard to different(More)
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